Insert values in table (mssql server) via PhP by using pdo - php

Question

I could not insert values in table (MSSQL) by using pdo php. I got message that connection is established but query does not work. I have never used MSSQL server I am not sure is this query good.
$database = "db";
$server = "xxx\SQLEXPRESS";
$conn = array( "Database"=>"db", "UID"=>"user", "PWD"=>"xxx" , "CharacterSet" => "UTF-8");
if( $conn ) {
echo "connection established";
}else{
echo "Connection could not be established.";
die( print_r( sqlsrv_errors(), true));
}
// insert values into table,
// variables are defined above didnt write them here
$query = $conn->prepare("INSERT INTO dbo.FKNarudzbaKupacaStavke(IdFirma, VrstaDokumenta, BrojDokumenta, BrojDokumentaKroz,
DatumDokumenta, IdKupac, VrstaCijene, NacinPlacanja, DatumZadnjeAkcije, Status, StatusArhive, StatusIzmjene,
StatusStampe, VrstaFakture) VALUES(:IdFirma, :VrstaDokumenta, :BrojDokumenta, :BrojDokumentaKroz, :DatumDokumenta, :IdKupac, :VrstaCijene, :NacinPlacanja,
:DatumZadnjeAkcije, :Status, :StatusArhive, :StatusIzmjene, :StatusStampe, :VrstaFakture)");
$query->bindParam(':IdFirma',$IdFirma);
$query->bindParam(':VrstaDokumenta',$VrstaDokumenta);
$query->bindParam(':BrojDokumenta',$BrojDokumenta);
$query->bindParam(':BrojDokumentaKroz',$BrojDokumentaKroz);
$query->bindParam(':DatumDokumenta',$DatumDokumenta);
$query->bindParam(':IdKupac',$IdKupac);
$query->bindParam(':VrstaCijene',$VrstaCijene);
$query->bindParam(':NacinPlacanja',$NacinPlacanja);
$query->bindParam(':DatumZadnjeAkcije',$DatumZadnjeAkcije);
$query->bindParam(':Status',$Status);
$query->bindParam(':StatusArhive',$StatusArhive);
$query->bindParam(':StatusIzmjene',$StatusIzmjene);
$query->bindParam(':StatusStampe',$StatusStampe);
$query->bindParam(':VrstaFakture',$VrstaFakture);
$query->execute();
I got this error :
Fatal error: Call to a member function prepare() on a non-object..
Any help or advice is appreciated!

Answer 1

The way you've written it, $conn isn't a connection, it's just an array.
Try this to connect to the database:
$hostname = 'xxx\SQLEXPRESS';
$username = 'user';
$password = 'xxx';
$dbname = 'db';
$conntype = 'mysql'; //or dblib or mssql
try {
$conn = new PDO("$conntype:host=$hostname;dbname=$dbname", $username, $password);
}
catch( PDOException $e ) {
echo( $e->getMessage() );
}

Answer 2

You are actually not establishing the connection there, please change your $conn variable as show below
$conn = new PDO("mssql:host=".$server.";dbname=db", "user", "xxx");